Metal-bending machine.



CHARLES E. WEEKS, or cAETEEvILLE, MISSOURI.

METAL-BENDING MACHINEl Specification of Letters Patent.

Patented May 21, 1907.

Application led January 21, 1907. Serial N0. 353,345.

To @ZZ Lul/0111, t may concern;

Be it known that l, CHARLES E. WEEKS, a citizen of the United States, residing at Carterville, in the county of Jasper and State of Missouri, have invented a new and useful Metal-Bending Machine, of which the following is a specification.

This invention relates to metal bending machines.

The objects of the invention are to improve and simplify the construction of such machines furthermore, to increase their efliciency in operation and to decrease the expense attending their manufacture.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combin nation and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made within the scope of the following claims without departing from the spirit of the invention or sacrificing any of its advantages. @mln the accompanying drawings forming part of this specicationz-Figure 1 is a plan view of a metal bending machine constructed in accordance with the present invention; Fig. 2 is a section on the line 2 2 of Fig. 1 and Fig. 3 is a section on the line 3*3 of Fig. 1.

Like reference numerals indicate corresponding parts in the ldifferent ligures of the drawings.

The improved metal bending machine of the present invention comprises a stationary member, indicated generally by A, and a swinging member, indicated generally by B. The stationary member A preferably comprises a lower box having a top 1 which is formed in the upper surface thereof with a plurality of grooves 2. The top 1 is formed with upstanding end flanges 3 and depending side, front, and rear flanges 4:. The stationary member A also comprises an upper box having a bottom 5 which is spaced a Short distance above the top 1 of the lower box so as to produce a Slot 6 adapted to receive the piece of sheet metal which is to be bent. The means for holding the upper and lower boxes of the stationary member together and for spacing the upper box away from the lower box, preferably comprises a plurality of bolts 7 having nuts 8. The bottom 5 of the upper box is provided with a plurality of thickened portions 9, each of which is formed with a slot 10 which extends entirely through the bottom 5 and is adapted to receive the threaded shank 11 of a gage block 12. Each of the gage blocks 12, at the lower end, projects into one of the grooves 2 of the top 1 of the lower box. The gage blocks 12 constitute stop members to limit the movement of the piece of sheet metal in the forward end of the slot 6. In order that the gage blocks 12 may be adjusted backward and forward in the slot 10, the threaded Shanks 11 are provided with wing nuts 13.

ln addition to the bottom 5, the upper box of the stationary member A :is provided with end and rear flanges 14. lt will be observed from Figs. 1 and 3 that the upper box is fitted down between the upstanding end fianges 3 of the lower box. The frontupstanding flange 15 of the upper box preferably is inclined rearwardly, as shown clearly in Fig. 2.

The swinging member B preferably comprises a top 16, depending ilanges 17, against which a handle 18 is held securely by means of a pair of bolts 19, and a pair of upstanding end fianges 20 which overlap the end iianges 3 of the stationary member A and are pivotally connected therewith by means such as the bolts 21.

The metal which is to be bent is passed over the swinging member B and into the slot 6 as far as the adjustable gage blocks 12 will permit. The handle 18 is then raised so as to cause the sheet of metal to be bent as indicated by the dotted lines in Fig. 2. The rearward incline of the front flange 15 of the stationary member A permits the metal to be bent at an angle which is less than a right angle, thereby adapting it to be used as a tailing trough for a mining plant.

The improved machine of the present invention is strong, simple, `durable and inexpensive in construction as weil as thoroughly efficient in operation.

What is claimed is:-

1. A metal bending machine comprising a stationary member consisting ofupper and lower boxes spaced away from each other to form a slot adapted to receive sheet metal, the lower box having grooves in its upper surface and the upper box having slots located above said grooves, gage blocks mounted in Said. grooves and having threaded Shanks extending upward through the slots in said upper box, wing nuts connected with said threaded Shanks, Iand a swinging member IOO IOS

IIO

. pivotally connected with the lower box of said stationary member` 2. A metal bending machine comprising a stationary member consisting of upper and lower boxes spaced away 'from each other to form a slot adapted to receive sheet metal, said lower box having depending front, rear and side flanges, upstandmg end fianges and grooves in its upper surface7 and said upper box having upstanding front7 rear and side flanges, said front flanges being rearwardly inclined, said upper box being also formed with thickened slotted portions above the grooves in said lower box, gage blocks mounted in the grooves of said lower box and having threaded shanks extending upward through the slots in said upper box, wing connected therewith, and a handle connected with the depending flanges of said swinging member.

ln testimony that l claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

CHAS. E. WEEKS.

Witnesses:

EARL MCCLARY, LOREN C. MCCLARY. 

